Upper Greenwood Lake, NJ Live Doppler Radar

Live radar for Upper Greenwood Lake, Passaic County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.

Open live radar for Upper Greenwood LakeWhat TALON shows

What weather hits Upper Greenwood Lake?

Since 1996, the National Weather Service has logged damaging thunderstorm winds on 87 days in the Western Passaic forecast zone and Passaic County — the most common reported hazard around Upper Greenwood Lake, mostly in July and August. Next come heavy snow & winter storms (73 days) and flash flooding (70 days).

HazardDays reportedMost recentWorst on record
Damaging thunderstorm winds87Jun 2026May 14, 2017 · 1 death · $2,000 damage
Heavy snow & winter storms73Feb 2026—
Flash flooding70Oct 2025Sep 16, 1999 · 1 death · $6.0 million damage
Flooding32Jul 2017Mar 14, 2010 · $3.0 million damage
High winds15Feb 2026Dec 1, 2010 · 1 death · $20,000 damage
Lightning casualties & damage14Jul 2021Sep 8, 2007 · 1 death
Excessive heat6Jul 2011—
Extreme cold & wind chill4Jan 2004—

Source: NOAA NCEI Storm Events Database, 1996–2026 (the latest year is partial). A "day" is a date with at least one report in the Western Passaic forecast zone and Passaic County; damage is as reported, not adjusted for inflation.

How much snow does Upper Greenwood Lake get?

A normal year brings about 28 inches of snow to Upper Greenwood Lake, based on NOAA's 1991–2020 climate normals for the Oak Ridge Rsvr weather station 12.2 miles away. The snowiest month is usually January (9.6 in).

OctNovDecJanFebMarAprMay
0.00.23.99.67.75.31.40.0

Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.

Which radars cover Upper Greenwood Lake?

The closest NEXRAD Doppler radar is KOKX (Upton, NY), about 82 miles east-southeast. Radar beams climb as they travel, so the height of the lowest scan over town decides how low in a storm the radar can see.

RadarDistanceLowest beam over Upper Greenwood LakeView
KOKX
Upton, NY		82 mi east-southeast7,100 ftFair — the beam can pass over shallow snow and low-level rotation
KDIX
Philadelphia, NJ		86 mi south7,600 ftFair — the beam can pass over shallow snow and low-level rotation
KENX
Albany, NY		98 mi north9,300 ftFair — the beam can pass over shallow snow and low-level rotation

Beam height is the center of the 0.5° scan above the radar, with standard refraction. Mountains near a radar can block it further.

Tornado & hail history near Upper Greenwood Lake

Since 1950, NOAA has recorded 30 tornadoes within 25 miles of Upper Greenwood Lake, 6 of them EF2/F2 or stronger. Most came in July and August. The strongest was an F3 on July 14, 1988, which passed about 11 miles north-northwest of town. The most recent was an EF0 on August 19, 2021, which touched down about 20 miles south-southwest of town.

Hail: 152 reports of 1-inch or larger hail within 25 miles since 1955, 7 of them 2 inches or more; the largest was 2.75-inch hail on July 11, 1995.

Source: NOAA Storm Prediction Center — tornadoes 1950–2025, hail 1955–2025. Distances are to each tornado's track; ratings before February 2007 use the original Fujita scale.

On TALON you get Upper Greenwood Lake's live radar loop, rain/snow/ice colors, flash-flood risk, storm tracks with arrival times and NWS warnings free; close-up radar and rotation detection are part of TALON Pro.

Upper Greenwood Lake radar FAQ

Where is the nearest weather radar to Upper Greenwood Lake, NJ?

KOKX (Upton, NY), about 82 miles east-southeast. KDIX (Philadelphia, NJ) is 86 miles away and also covers the area.

Does radar show snow in Upper Greenwood Lake?

Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Upper Greenwood Lake the lowest scan from KOKX is about 7,100 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.

Is TALON's radar for Upper Greenwood Lake free?

Yes — the US radar loop, rain/snow/ice colors, flash-flood risk, storm tracks and NWS warnings are free in any browser. Close-up radar, rotation detection and longer forecasts are part of TALON Pro.

Should I rely on radar for my safety?

No app replaces official warnings. When the National Weather Service issues a warning for Upper Greenwood Lake, follow it right away — see watch vs. warning.

Radar for nearby towns

All New Jersey towns →